/*
 * Copyright 2007 National Bioinformatics Network
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package dgbgui.gui.event;

import java.awt.event.InputEvent;

import edu.umd.cs.piccolo.event.PInputEvent;
import edu.umd.cs.piccolo.event.PInputEventFilter;
import edu.umd.cs.piccolo.event.PZoomEventHandler;

public class ZoomEventHandler extends PZoomEventHandler implements
        CheckConsumedInputEventHandler {

    public ZoomEventHandler() {
        setEventFilter(new PInputEventFilter(InputEvent.BUTTON3_MASK | InputEvent.SHIFT_MASK));
    }
    
    protected void startDragActivity(PInputEvent aEvent) {
        m_processed = true;
        super.startDragActivity(aEvent);
    }
    
    protected void stopDragActivity(PInputEvent aEvent) {
        m_processed = true;
        super.stopDragActivity(aEvent);
    }
    
    public boolean eventProcessed(PInputEvent event, int type) {
        m_processed = false;
        processEvent(event, type);
        return m_processed;
    }
    
    private boolean m_processed;

}
